Installation
vacon • 71
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
5
The high DC voltage must be taken into account when wiring the supply; suitable cables/leads must
be used.
The DC/DC power supply is monitored and controlled by the Active Front End unit. The DC/DC power
supply connections are shown in Figures 41 - 42 and Appendix 83 and Appendix 84.
The control connection has to be taken from the Active Front End unit. The control cable has to be
connected to the terminal X51 on the LCL filter, see Figure 41 and Figure 42. The control cable has
to be connected to the terminal X3 on the Active Front End unit, see Figure 44. The terminal X3 can
be found under the black cover. In the FI13, the terminal X3 is located in the left-most unit. The
delivery includes the cable for the control connection. The length of the standard cable is 1.6 m.
The over-temperature protection can be wired directly to the control unit or to the DC/DC power
supply. The over-temperature protection must be connected to protect the filter for protect the filter
in case of over-temperature.
NOTE!
By default, the over-temperature protection is not activated. If it is not activated, the LCL can
be damaged in case of over-temperature.
If the over-temperature protection is connected to a digital input, the wires have to be removed from
the terminal X52. The I/O wiring has to be connected to the terminals 1 and 4 on the terminal X52,
see Appendix 84. If the over-temperature protection is connected to the I/O of the Active Front End
unit, it can be programmed. The parameter P2.2.1.3 has to be set to choose the digital input to which
the over-temperature monitoring is connected. The parameter P2.7.3 allows one to select the
response to an over-temperature alarm as wanted.
If the over-temperature protection is connected to the DC/DC power supply, the jumper has to be
removed from the terminal X3. The cable from the terminal X52 should be connected to the terminal
X3. By default, the jumper is connected to the terminal X3, see Figure 42. The delivery includes the
cable for connecting the terminals X52 and X3. The wiring diagram can be seen in Appendix 84. If
over-temperature monitoring is connected to the DC/DC power supply, the Active Front End unit will
monitor over-temperature. The response to an over-temperature alarm cannot be selected. In this
case, the over-temperature fault message will be same as the fan fault of the unit. On the keypad,
the fault “32 Fan Cooling” will be shown.
